Cummins X15 CM2350 X116B Performance Series (2018 & Newer) Fault Code: 6739 PID: SPN: 521031 FMI: 4/4 Route Parameter Manager Module – Voltage Below Normal, Or Shorted To Low Source
Lamp:None Reason:An internal error of the route parameter manager module has been detected. Effect:Predictive cruise control will not operate. Standard...